Innovation: Pro-Xfill Replumping collagen effect. Visible result. No Injection. No compromise. Based on their avant-garde collagen expertise, the HELENA RUBINSTEIN Research Laboratories have revealed the link between the weakening of collagen with age and the appearance of visible pores. They have created a smoothing refining serum formulated to act deep down on the structure surrounding pores and on the surface to improve the appearance of pores.